本文实例为大家分享了php留言板功能的具体代码,供大家参考,具体内容如下
数据库用到的三张表
一.登录界面 (denglu.php login.php)
1.denglu.php
<!DOCTYPE html><html><head><meta charset="UTF-8"><title></title></head><body><h1>开发部内部留言板</h1><form action="login.php" method="post"><div>用户名:<input type="text" name="UserName" /></div><div>口令:<input type="password" name="PassWord" /></div><input type="submit" value="登录" /><a href="denglu.php" style="text-decoration:none"><input type="button" value="复位" /></a></form></body></html>
2.login.php
<?phpsession_start();$UserName = $_POST["UserName"];$PassWord = $_POST["PassWord"];require "DBDA.class1.php";$db = new DBDA();$sql = "select PassWord from yuangong where UserName = '{$UserName}'";$arr = $db->query($sql);if(count($arr)){ if($arr[0][0] == $PassWord && !empty($PassWord)) { //存储用户名 $_SESSION["UserName"] = $UserName; header("location:main.php"); }}else{ header("location:denglu.php");}
二.主界面(main.php tuichu.php)
1.main.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><body><?phpsession_start(); // 防止绕过登陆直接进入主界面if(empty($_SESSION["UserName"])){ header("location:denglu.php"); exit;} require "DBDA.class1.php";$db = new DBDA();$UserName = $_SESSION["UserName"];?><div><a href="fabu.php">发布信息</a><a href="tuichu.php">退出系统</a></div><br /><br /><h1>留言信息:</h1><table width="100%" border="1" > <tr> <td>发送人</td> <td>发送时间</td> <td>接收人</td> <td>信息内容</td> </tr> <?php //显示接收者是我的,或者是所有人的 $sql = "select * from liuyan where Recever='{$UserName}' or Recever='suoyou'"; $arr = $db->query($sql); foreach($arr as $v) { echo "<tr> <td>{$v[1]}</td> <td>{$v[3]}</td> <td>{$v[2]}</td> <td>{$v[4]}</td> </tr>"; } ?> </table></body></html>
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